Oooo I'm glad to see another text-based game with a spooky vibe to it XD I also had code for having the text print out letter by letter, but if you want the player to have the ability to click the text to "speed" through the text, here's the tutorial I used!
https://www.youtube.com/watch?v=8oTYabhj248
With this code I was also able to add a sfx everytime a letter was printed, but it was kinda funky and would make a "pop" sound everytime it did :/ But yeah this was indeed very cool :>